Understanding the configuration properties and company parameters
Another important menu in the technical options is Settings | Technical | User Parameters. You can find two options there: System Parameters and Company Properties.
System Parameters, or ir.config_parameter, stores global configuration options. Some are defaults that can be adjusted, while others are set when some options are selected in the General Settings option. It is a simple key/value list—for example, the web.base.url option stores the Odoo server Uniform Resource Locator (URL) and can be used to create links in email templates.
Company Properties, or ir.property, is where data for multi-company fields is stored. Some fields can have different values depending on the active company. These are also known as property fields.
For example, the partner fields Account Receivable (property_account_receivable_id), relevant for customers, and Account Payable (property_account_payable_id), relevant for suppliers...
